Universidad Complutense de Madrid
E-Prints Complutense

Sample-to-sample fluctuations of the overlap distributions in the three-dimensional Edwards-Anderson spin glass

Impacto

Downloads

Downloads per month over past year

Fernández Pérez, Luis Antonio and Martín Mayor, Víctor and Muñoz Sudupe, Antonio and Seoane, B. and Yllanes, D. and otros, ... (2011) Sample-to-sample fluctuations of the overlap distributions in the three-dimensional Edwards-Anderson spin glass. Physical review B, 84 (17). ISSN 1098-0121

[img]
Preview
PDF
1MB

Official URL: http://doi.org/10.1103/PhysRevB.84.174209


URLURL Type
http://journals.aps.org/Publisher


Abstract

We study the sample-to-sample fluctuations of the overlap probability densities from large-scale equilibrium simulations of the three-dimensional Edwards-Anderson spin glass below the critical temperature. Ultrametricity, stochastic stability, and overlap equivalence impose constraints on the moments of the overlap probability densities that can be tested against numerical data. We found small deviations from the Ghirlanda Guerra predictions, which get smaller as system size increases. We also focus on the shape of the overlap distribution, comparing the numerical data to a mean-field-like prediction in which finite-size effects are taken into account by substituting delta functions with broad peaks.


Item Type:Article
Additional Information:

© 2011 American Physical Society. Artículo firmado por 23 autores. Janus has been funded by European Union (Fondo Europeo de Desarrollo Regional) funds, by Diputación General de Aragón (Spain), by a Microsoft Award-Sapienza-Italy, and by Eurotech. We acknowledge partial financial support from Ministerio de Ciencia e Innovación, Spain (Contracts No. FIS2009-12648-C03, No. FIS2010-16587, and No. TEC2010- 19207), Junta de Extremadura (GR10158), UEx (ACCVII-08), and from UCM-Banco de Santander (GR32/10-A/910383). D. Íñiguez is supported by the Government of Aragon through a Fundación ARAID contract. B. Seoane and D. Yllanes are supported by the Formación del Profesorado Universitario program (Ministerio de Educación, Spain).

Uncontrolled Keywords:Ordered phase; Ultrametricity; Systems; Model.
Subjects:Sciences > Physics
Sciences > Physics > Physics-Mathematical models
ID Code:37787
Deposited On:24 May 2016 07:31
Last Modified:25 May 2016 08:41

Origin of downloads

Repository Staff Only: item control page